/*-------------------------------------------------------------------------
 *
 * util.c--
 *    general routines for libpq backend
 *
 * Copyright (c) 1994, Regents of the University of California
 *
 *
 * IDENTIFICATION
 *    $Header: /usr/local/cvsroot/postgres95/src/backend/libpq/util.c,v 1.3 1996/11/06 08:48:33 scrappy Exp $
 *
 *-------------------------------------------------------------------------
 */
/*
 *   UTILITY ROUTINES
 *	pqdebug		- send a string to the debugging output port
 *	pqdebug2	- send two strings to stdout
 *	PQtrace		- turn on pqdebug() tracing
 *	PQuntrace	- turn off pqdebug() tracing
 */

#include <stdio.h>	/* for sprintf() */
#include <string.h>

#include <postgres.h>
#include <lib/dllist.h>
#include <libpq/libpq.h>	/* where the declarations go */
#include <utils/exc.h>


/* ----------------
 *	exceptions
 * ----------------
 */
Exception MemoryError = {"Memory Allocation Error"};
Exception PortalError = {"Invalid arguments to portal functions"};
Exception PostquelError = {"Sql Error"};
Exception ProtocolError = {"Protocol Error"};
char PQerrormsg[ERROR_MSG_LENGTH];

int PQtracep = 0;		/* 1 to print out debugging messages */
FILE *debug_port = (FILE *) NULL;

/* ----------------------------------------------------------------
 *			PQ utility routines
 * ----------------------------------------------------------------
 */
void
pqdebug(char *target, char *msg)
{
    if (!target)
	return;
    
    if (PQtracep) {
	/*
	 * if nothing else was suggested default to stdout
	 */
	if (!debug_port)
	    debug_port = stdout;
	fprintf(debug_port, target, msg);
	fprintf(debug_port, "\n");
    }
}

void
pqdebug2(char *target, char *msg1, char *msg2)
{
    if (!target)
	return;
    
    if (PQtracep) {
	/*
	 * if nothing else was suggested default to stdout
	 */
	if (!debug_port)
	    debug_port = stdout;
	fprintf(debug_port, target, msg1, msg2);
	fprintf(debug_port, "\n");
    }
}

/* --------------------------------
 *	PQtrace() / PQuntrace()
 * --------------------------------
 */
void
PQtrace()
{
    PQtracep = 1;
}

void
PQuntrace()
{
    PQtracep = 0;
}




